Furuno FR-2805 Series - Manual (Page 106)

A-12
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Mode indicator (A/D/E/M/S/N) *2
Checksum
Speed over ground, K = km/h
Speed over ground, knots
Couse over ground, degrees magnetic *1
Couse over ground, degrees true
*1 Not used
*2 Edition 2 only
,
*1 Not used
*1
*1 Not used
*1
*1